Finding the Fourth Proportional to 356,011.76, 491,296.96 and 194,877.09
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Solution
The fourth proportional to 356,011.76, 491,296.96 and 194,877.09 is: 268,930.79
Step by Step Solution
- Step 1: Write the proportion equation
356,011.76 : 491,296.96 = 194,877.09 : x - Step 2: Convert to fraction form
356,011.76/491,296.96 = 194,877.09/x - Step 3: Cross multiply
356,011.76x = 491,296.96 × 194,877.09 - Step 4: Simplify right side
356,011.76x = 95,742,521,403.45 - Step 5: Solve for x
x = 95,742,521,403.45/356,011.76 - Step 6: Final answer
x = 268,930.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.